package com.wang.utils;

import com.wang.entity.User;
import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.springframework.beans.factory.annotation.Value;

/**
 * 密码加密类
 */
public class PasswordHelper {
    private RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();
    @Value("${password.algorithmName}")
    private String algorithmName = "md5";
    @Value("${password.hashIterations}")
    private int hashIterations = 2;

    public void setRandomNumberGenerator(RandomNumberGenerator randomNumberGenerator) {
        this.randomNumberGenerator = randomNumberGenerator;
    }
    public void setAlgorithmName(String algorithmName) {
        this.algorithmName = algorithmName;
    }

    public void setHashIterations(int hashIterations) {
        this.hashIterations = hashIterations;
    }

    public void encryptPassword(User user) {
        String salt = new SecureRandomNumberGenerator().nextBytes().toHex();
        user.setSalt(salt);

        String newPassword = new SimpleHash(
                algorithmName,
                user.getPassword(),
                user.getSalt(),
                hashIterations).toHex();

        user.setPassword(newPassword);
    }


}
